Improvement in drill-feeds for artesian wells



UNITED STATES PATENT OFFICE,

THOMAS J. LOVEGROVE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HIMSELF AND HENRY BALDYVIN, JR., OF SAME PLAGE.

IMPROVEMENT IN DRILL-FEEDS FOR ARTESIAN WELLS.

Specification forming part of Letters Patent No. 53,536, dated March 27, 1866.

To all whom it may concern.-

Beit known that I, THOMAS J. LovEGnovE, of the city and county of Philadelphia, in the State ot Pennsylvania, have invented a new and useful Method of Feeding the Drill in Boring Artesian Vells, of which the following is afull, clear, and exact description, reference bein g had to the accompanying drawing` which makes part ot' this specitica-tion, and which shows a view, in perspective, of so much of an apparatus for boring wells as is necessary to illustrate my invention, with a portion of the frame-work broken away, to show the parts more clearly. l

In boring oil-wells two classes of tools are used, respectively designated as pole-tools7 and rope-tools. My invention relates to the latter class.

A set of rope-tools consists of, first, the drill, second, the drillstocl;; third, the jar; fourth, the sinker, (the parts being arranged in the order named, the drill being lowest) and, fifth, the rope attached by a socket or clamp on its lower end to the sinker.

As ordinarily arranged, the rope to which the tools are attached passes from the bullwheel over a pulley (at the top of the derrick and directly over the bore) to a clamp at the lower end of a temper-screw, which clamp has to be moved and readjusted as often as the drill bores a distance equal to the length of the temper-screw.

When the boring commences a temper-screw clamp is fastened' upon the rope about four feet above the wrench-board. About twelve or fifteen feet of rope are then drawn from the 'bullwheel and formed -into a loop in order to allow suflicient play for the twisting of the rope in turning the drill. This loop is troublesome to manage. The arrangement of the temperscrew is also objectionable, as it requires readjnstment as often as the boring progresses the length of the screw.

I have found by experiment that wire rope is by far the best for boringoil-wells; but such rope cannot advantageously be employed under the system above described.

Now, it is the object of my invention to obviate the objections incident to the former system 5 and my improvement consists in feeding the rope to the drill over the end of the walking-beam ot the boring-engine while the beam is in motion by means of a system ot' sheaves or pulleys so arranged as to afford rope enough to accommodate the twisting of the drill without having any loop or slack rope, while the feed is controlled by the augerman, who can detach the rope at once from the pulleys when it becomes necessary to raise or lower the drill or tubing. My improvement also dispenses with the temper-screw.

In the accompanying drawing, which exemplities wha-t I deem the best mode of applying my invention, Arepresents the well; B, the derrick 5 G, the walking-beam; D, the sampsonpost; E, the bull-wheel; E', its shaft; F, the brake; G, the rope, and H I J K the pulleys.

The rope is so arranged as to pass over the pulley H at the top ot' the derrick and directly over the hole, thence under the pulley I in the side of the derrick, and next the walkingbeam, thence around the pulley J on the sampson-post, (the shaft of this pulley I, in thisinstance, bein g the fulcrum of the walking-beam,) and iinally over the pulleyl K on the end ot' the walking-beam and directly over the hole. By this arrangement the rope is brought back to its position in line with the hole, andl will be raised and lowered more equally while drilling than if brought down directly from the top of the derricl; while at the same time the twist imparted in turning the drill may extend back the entire length of the rope from the drill to the bull-wheel.

The augerman stands over the hole and turns the drill as it descends by twisting the rope,'and at the same time controls the feed of the drill by means of the brake F. The weight of the drill is sufiicient to unwind the rope, so that it is only necessary to retard its descent by the brake to regulate the feed.

A ratchet or rag wheel and detent might be used instead of a friction-brake, if preferred.

When the drill is to be raised or lowered the rope is thrown oft' the pulley on the sampson-post, when it immediately releases itself from all the others except the one at the top of the derrick. The tools are then raised by power applied to the bull-wheel or its shaft in the usual way.

lt is obvious that the arrangement of the pulleys might be varied somewhat without departing from the spirit of my invention. For example, the pulley H may be replaced by a shaft having a central groove for the cord and be supported near the top of the rear standards. The pulley I may be also replaced by a similar shaft having journals near the oenter ofthe joint-standards, While the Walkingbearn may have a pulley secured in a notch on its inner end7 and the brake may be applied to the under side of a grooved pulley on the reel or rope-beam.

As my invention dispenses with the temperscrevv, and the loop in the rope permits the advantageous use of wire rope, (which is not so cumbersome nor liable to chate or break as hemp,) leaves the feed entirely under the control of the augerman, and can readily be applied to the ordinary boring apparatus Without essential modification of their parts, its advantages are obvious.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. Feeding the drill-rope from the bull-Wheelscribed my naine.

T. J. LOVEGROVE. In presence of- WM. C. HART, W. G. H. GONE. 

